Mount for speaker box



FIG. 1 is a perspective view of a mount for speaker box showing our new design;

FIG. 2 is bottom plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a side elevation view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a mount for speaker box, as shown and described. 